Trail Running calendar near Groton 2025-2026

We have found 57 Trailruns within 80 miles of Groton. See below where and when you can find the races.

The Five Fields Farm Races, taking place in Bridgton, ME, features two challenging events: a 50K ultra marathon and a 10K trail run. The 50K is designed for both seasoned runners and newcomers to ultra distances, while the Bald Pate 10K offers a rugged course with steep climbs and technical terrain,..

September 2025

The Fall Trail Running will take place in Gorham from Monday 1 September 2025 to Friday 10 October 2025.

The Groton Forest Trail Run, organized by Central Vermont Runners, features a marathon, 25K, and 10K trail running events set in the scenic Boulder Beach State Park in Groton, Vermont. Scheduled for September 6, 2025, this event promises a challenging and enjoyable experience for runners of all leve..

The Kilkenny Ridge Race, organized by Aravaipa Running, features challenging trail races of 50 miles, 25 miles, and 25K in the scenic White Mountain National Forest of New Hampshire. The course follows the Kilkenny Ridge Trail, offering approximately 7,500 feet of elevation gain and traversing remot..

The TAM Trek is an annual trail race and fun run organized by the Middlebury Area Land Trust to support the Trail Around Middlebury (TAM). This scenic 19-mile loop encircles Middlebury, connecting various local landmarks and conserved properties. Participants can choose from multiple race options, i..

The Royal (multi) Mile Hill Run is a challenging 5K race held during the NH Highland Games & Festival in Lincoln, New Hampshire. Scheduled for September 21, 2025, the event features a course with an elevation gain of 800 feet, traversing dirt trails, service roads, and ski trails. Participants recei..

The Vermont 50 Ultra Run is an annual event held in West Windsor, Vermont, featuring a variety of races including a 50-mile ultra run, a 50K run, and several mountain biking options. Established in 1993, the event supports Vermont Adaptive Ski and Sports, promoting confidence and independence for in..

The Pleasant Mountain Race is an annual running event held in Bridgton, Maine, featuring a challenging 21k course that showcases the stunning fall foliage and technical single-track trails of Pleasant Mountain. Participants will face significant elevation gains, including a steep climb up Bald Peak,..

October 2025

Bubba's Backyard Ultra is an exciting running event held in Center Conway, NH, featuring the Last Person Standing format. Participants tackle a challenging 3.5-mile loop course that includes forest trails, snowmobile paths, fields, and logging roads, with an elevation gain of approximately 250 feet..

The Devil's Den Ultra is an exciting running event taking place in Bradford, Vermont, featuring a challenging 6.4-mile loop course on Wright's Mountain. Participants can choose from three race lengths: a 30-hour, a 12-hour, or a 6-mile race. The course offers a mix of terrain, including steep climbs..

The Trapp Lodge Mountain Marathon is a challenging trail running event held in the picturesque Green Mountains at the Trapp Family Lodge in Stowe, Vermont. Participants can choose between a half marathon and a full marathon, both of which feature a mix of winding single track and rugged dirt trails,..

Bromont Ultra is an annual trail running and mountain biking event held in Bromont, Quebec, designed to challenge participants while raising funds for various charitable causes. Since its inception in 2014, the event has successfully raised over $4 million for more than 20 different causes. Particip..

The Randolph Ramble is a challenging 10-kilometer trail race set in the scenic Great North Woods of Randolph, New Hampshire, located at the base of the Northern Presidentials. This self-supported race emphasizes participants' self-sufficiency, as there are no aid stations along the course. Runners a..

The Hills Are Alive Cross Country Race is set to take place at Arrowhead Golf Course in Milton, Vermont. This event features a 5K race on the scenic Laura’s Tears trail, welcoming runners aged 12 and older. Participants can pre-register online, with a fee of $15, and GMAA members receive a discount...

November 2025

The Blackout 5k/10k is an exciting running event taking place at Cranmore Resort in North Conway, NH. Scheduled for November 1, 2025, this race features both 5k and 10k distances, designed to challenge participants on a course that includes access roads and ski trails, illuminated by reflective flag..

The Mount Ascutney Vertical Backyard is a unique "Last Person Standing" running event held in Brownsville, VT. Participants will ascend and descend 1,209 vertical feet each hour, with options for different lap lengths. The challenge continues until only one runner remains, with the goal of matching..

December 2025

The Krampuslauf is an exciting running event held at the Dartmouth Skiway in Lyme, NH, featuring 5K, 10K, and a challenging 9-hour endurance race. Participants will navigate scenic mountain trails, starting at the ski lodge and tackling both Holt's and Winslow sides of the mountain. Runners can earn..